How to Pronounce Bundle of His

Say it like this: BUN-dul uv hiz. The first word rhymes with "bundle" (like a bundle of sticks), and "His" sounds just like the male pronoun "his." The stress falls on the first syllable: BUN-dul.

The main emphasis in this phrase goes on "bundle," which is the primary noun. "His" is part of a proper name (it refers to a person), so it stays quieter. A common mistake is saying bun-DUL uv HIS with the stress in the wrong places.

Yes: BUN-dul (2 syllables) + of (1 syllable) + His (1 syllable). So it's four syllables total: BUN-dul-uv-hiz.

A bundle is a group of things tied or held together—like a bundle of firewood or a bundle of clothes. In this medical term, it describes a cluster of specialized heart cells grouped together.

The term is named after Wilhelm His Jr., a Swiss anatomist who discovered this structure in the heart. That's why it's "Bundle of His"—it's named after him, just like other medical terms named after people (such as Eustachian tube).

Think of it as an electrical pathway in the heart. It's a special group of cells that carries the signal telling your heart to beat, passing that signal from one part of the heart to another. It's like the wiring in your house carrying electricity to different rooms.

You might hear "bundle branch" (one of the smaller pathways that branch off from the Bundle of His) or "AV node" (the part that sends the signal to the Bundle of His in the first place). These all describe the heart's electrical conduction system.

Sometimes doctors and textbooks abbreviate it as "HB" or "BH," but these aren't commonly used in everyday speech. It's usually just said as the full term: "Bundle of His."